45178051 has 4 divisors (see below), whose sum is σ = 45196704. Its totient is φ = 45159400.

The previous prime is 45178043. The next prime is 45178057. The reversal of 45178051 is 15087154.

45178051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15087154 = 2 ⋅7543577.

It is a cyclic number.

It is not a de Polignac number, because 45178051 - 2³ = 45178043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45178057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5035 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (11299176).

Almost surely, 2^45178051 is an apocalyptic number.

45178051 is a deficient number, since it is larger than the sum of its proper divisors (18653).

45178051 is a wasteful number, since it uses less digits than its factorization.

45178051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18652.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 45178051 is about 6721.4619689469. The cubic root of 45178051 is about 356.1578304289.

The spelling of 45178051 in words is "forty-five million, one hundred seventy-eight thousand, fifty-one".